Air conditioning device for vacuum cleaners



.Oct. 24, 1933.

D. H. CHASON 1,931,884

AIR comawromne DEVICE FOR VACUUM CLEANERS Filedllay 2. 1951 Patented Oct.

f lms 1.

- UNITED STATES AIR CONDITIONING DEVICE non vacuum:

I CLEANERS Daniel n. Chason, Elizabeth, N. 1, want. to The Singer 'Manufacturing' Company, Elizabeth, N. J., a corporation of New Jersey Application May 2,1931. Serial in. 534,552 11 Claims. (01. 161-3) This invention relates to improvements in air purifying or deodorizing expedients employed more particularly in connection. with vacuum cleaners and similar blower appliances, and has for its primary object to provide an inexpensive container for any preferred air purifying or deodorizing substance, which container may be conveniently charged and inserted or removed from the air-stream conduit of the blower device.

Apreferred embodiment of the invention consists in the novel features of construction and in the arrangement and combination of parts hereinafter described in connection with the accompanying drawing, in which Fig. 1 is a side elevation, partly in section, of a vacuum cleaner having an air-stream hose connected thereto. Fig. 2 is a longitudinal section of the hose-nozzle and of the improved container inserted therein. Fig. 3 is a perspective view, partly in section, of the container with its cap removed. Fig. 4 is an enlarged cross-section of the container, looking toward the bottom thereof.

The present improvement is not limited. to any particular vacuum cleaner construction, the accompanying drawing illustrating a commercially well known vacuum cleaner having a frame or casing 1, an intake nozzle 2, an electric-motor 3 provided witha fan 4, and an outlet nozzle 5. Connected with the outlet nozzle 5 is one end of an air-stream conduit comprising a flexible hose 6, which for blower purposes replaces the dust-bag usually connected with the outlet nozzle 5. Into the discharge end of the hose 6 is removably fitted the tubular shank of the usual blower-nozzle having an intermediate tapered portion 8 terminating in a flattened end 9, it being understood that the, flexible hose yieldingly grips the tubular shank of the nozzle.

The present improved container 10 for the deodorizing or air purifying substance is inserted partly into the tubular shank '7 of the blowernozzle and frictionally engages the tapered portion of said nozzle, one end of the container preferably protruding from the blower-nozzle a sufficient distance to provide for convenient removal of the container from said nozzle when the latter is detached from the hose 6. The container 10 is preferably made from a substantially rectangular piece of sheet metal bent into tubular form, one of the longitudinal margins 11 being slightly indented and overlapped by 'the other longitudinal margin 12 to provide a substantially continuous outer peripheral surface. The inner or indented margin 11 is partly cut the spring of the metal tends to flexibly expand away adjacent one end of the container and abuts against the edge of the other margin 12, as illustrated in Fig. 3 of the drawing, said end of the container being slightly reduced in diameter to provide acap-receiving neck 13. Adjacent to the neck 13, the overlapping margins 11 and 12 are pivotally connected to each other by a rivet 14, said margins being unsecured at the opposite end or bottom of the container whereby the container wall at the bottom thereof and to cause the container to assume a slightly tapering form. 7

Within the bottom of the container and yieldingly engaging the inner wall thereof are a pair of segmental, U-shaped holder-sections 15 to-.

gether supporting a foraminous closure comprising 'a screen 16, each of said sections having a tongue 17 which is inserted into a web 18 formed by pressing inwardly the wall of the container between parallel slits therein, the bottom end of the container having an inwardly directed I flange 19 which together with the webs 18 serves to retain the screen-holder sections 15 in position within the container. The holder-sections 15 for the screen are spaced from each other circumferentially of the container to accommodate expansion and contraction of the container wall.

The neck 13 of the container is provided with diametrically opposite bayonet-grooves 20 formed by pressing the metal inwardly, said grooves being adapted to receive nubs 21 spot punched in a cap 22 at diametrically opposite points in the side wall thereof. The upper end of the cap 22 has an inwardly directed flange 23 which together with an adjacent, annular spun rib 24 serves to retain a cap-screen 25 thereby providing a foraminous closure for the top end of the container. It will be understood from the foregoing description that the only closures for the opposite ends of the container are the screens 16 and 25 when the cap 22 is applied to the neck 13 of the container.

The deodorizing or air purifying substance 26 placed within the container is preferably of 103 granular form providing a porous mass, but it is obvious that said substance might have a different form, the particular nature of the substance being immaterial so far as concerns the improved container structure. I I A 105 After the container has been suitably prepared, it is inserted bottom-end first into the tubular shank '7 of the blower-nozzle while detached from the hose 6, the expansible bottom end of the container yieldingly gripping the tapered portion of said nozzle and the cap-end protruding from the shank thereof. The major portion of the length of the container, from the cap end thereof is of slightly less diameter than that of the tubular portion of the nozzle shank, so that only the bottom end of the container grips the nozzle and consequently said container may be readily removed therefrom when desired. The nozzle with the container applied thereto is then inserted into the hose 6 with the cap end of the container directed toward the air-stream, whereupon the air-stream not only acts to more firmly seat the container within the nozzle but also to retain the cap upon the container.

Having thus set forth the nature of the invention, what I claim herein is:-

1. A blower appliance having a flexible airstream hose, a nomle having a tubular shank removably disposed within one end of said hose in gripping engagement with the inner surface thereof, and a tubular container for. an air puritying or deodorizing substance removably disposed within said nozzle in yielding fltting en-* gagement circumferentially with the inner wall of said nozzle, and projecting from said nozzle partly into said hose.

2. A blower appliance having an air-stream hose, a nozzle removably applied to the discharge end of said hose, and a container for an air purifying or deodorizing substance, said container having a foraminous bottom and a removable cap with a foraminous top and being frictionally disposed within said nozzle with the cap end of the container protruding from the portion of the nozzle within said hose.

3. The combination with a blower appliance having an air-stream conduit,- of a containerin the form of a sheet-metal tube adapted to be removably inserted in said conduitand having a foraminous bottom and a removable cap providing-a foraminous closure for the opposite end of the tube, said tube at its end opposite to the cap end thereof having flexibly expansible means yieldingly gripping the inner wall of said airstream conduit, and an air deodorizing or purl fying substance within said container.

4. An air purifying or deodorizing device for blower appliances having an air-stream conduit,

comprising a container adapted to be removably inserted in said conduit and constructed of sheetmetal bent into the form of a tube by overlapping the side margins thereof; said overlapping margins being secured together adjacent one end of the tube and expansible at the opposite end thereof, and foraminous closures for the opposite ends of the-tube suitable for retaining an gi l-gm'ifying or deodorlzing substance within the 5. An air purifying or deodorizing device for blower appliances having an air-stream conduit, comprising a container adapted to be removably inserted in said conduitand constructed of sheetmetal bent into the form of a tube by overlapping the side margins thereof, said overlappin margins being secured t'ogether adjacent one .end of the tube and expansible at the oppositefiend thereof, a foraminous closure for one end of said tube, and a removable cap providing a foraminous closure for the opposite end of said tube.

6. An air purifying or deodorizing device for blower appliances having an air-stream conduit, comprising a-container adapted to be removably inserted in said conduit and constructed of sheetmetal bent into the form of a tube by overlapping thes'ide margins therof, one of said margins being cut away at one end of the tube and abutting the other margin, securing means for said overlapping margins adjacent the abutted portions thereof, a removable cap providing a foraminous closure for the abutting-margin end of the tube, and a foraminous closure for the-0pposite end of said tube.

I. An air purifying or'deodorizing device for blower appliances having an air-stream conduit,

removably inserted in said conduit, a screenholder at one end of said container comprising complemental holder-sections each having a tongue projecting therefrom, securing webs upon the inner surface of said container entered by said tongues, means for securing. said holder-section tongues within said webs, a screen supported by said screen-holder, and a foraminous closure for the opposite end of said container.

9. Any air purifying or deodorizing device for blower appliances having an air-stream conduit comprising a tubular sheet-metal container having a flexibly expansible wall at one endthereof and adapted to be removably inserted in said conduit, a screen-holder at the expansible end 1 of said container comprising separable segmental holder-sections, a screen supported by said holder-sections, means for securing said screen-holder in the contaner, and a foraminous closure forconduit and havingforaminous opposite ends,

said container being of less diameter at one end I thereof than the inside diameter of said conduit a tubular shank removably applied to said hose,

said nomle having a tapered portion between itsends, of a tubular container for an air purifying or deodorizing substancedispoeed within said nozale and frictionally seated upon said tapered portion thereof to project from the nozzle into said hose, said container having foraminous opposite ends. DANIEL H. CHASON. 

